Radiator core



0. IF. AND J. H. SPERY.

RADIATOR CORE.

APPLICATION FILED MAY 26, 1921.

Patented Aug. 8, 11922.

Ellllll INVENT'URSI I CHHFLE'E Ff E'FFRY FITTURNEY negates.

untranstares ant orries.

Y CHARLES I. SPEJRLY AND JOSEPH JBE. SJPIERY, @lll CHICAGG, ILJLJIIWTDI'S.

aanraron cons.

Application filed May 26,

To aZZ'yc-hom it may concern Be it known that We, CHARLES F. Srnnr and JosnPH H. SPERY, citizens of the United Cores, of which the following is a specification. 2' This invention has relation to water cooled internal combustion engines and refers particularly to radiator cores for such engine.

@ur object is the provision of a simple, inexpensive and highly efficient structure of this character. A. further object is the provision of improved means for directing the current of air passing through the core upward, in order to bear more intimately against the sides of the water channels of the core.

The objects and the further advantageous features of our invention are hereinafter fully set forth and illustrated in the appended drawing, of which:

Fig. 1 is a front elevation of a portion of a radiator core embodying our invention,

Fig. 2 shows one of the elements of the core removed.

Fig. 3 is a partial side elevation of the structure of Fig. 2,

Fig. 4: illustrates a Water channel of the structure,

Figs. 5 and 6 are plan views looking down on Fig. 2, substantially on lines AA and BB, respectively, I

Figs. 7 and 8 show the spacing member of the core, and

F ig. 9 is a plan view substantially on a line CC of Fig. 7 V

The core is composed of two main portions, 1 series of water channels and an in tervening series of spacing structures. The water channels themselves are of a composite nature, as will presently appear. In Fig. 2 is shown a frame, the two sides 1, 2, of which are substantially alike, one appearing to be reversed relative to the other, and the ends of the frame are suitably combined, as by a lockseam 3. There may be such a seam at each end, or the metal from which the frame is made may be merely folded over as shown at the bottom end 4.

The said frames are made the full height of the radiator core and a sufficient quantity of frames are set side by side to reach across the entire width of the radiator. When the frames are thus assembled it is noticed that Specification of Letters Patent.

Patented Aug. 8, 1922. teen. semi 17o. 472,656.

the outline of a side 1 coincides with the outline 2 ofthe adjacent frame, see Fig. 1, and

that each pair of adjacent sides 1 and 2 form a Water channel, see also Fig. 4. lff the frame sldes 1 and 2 could of themselves be depended upon to retain their shape during the process of assembling, so the edges of the coinciding sides in intimate contact and correctly aligned, it would not be necessary to add any-more parts to .the core, whlch .then would be dipped in solder as to maintain for the purpose of binding the edges of said sides together. But these frames are made from very thin metal and do not retain their shape, and for this reason, as well as for the purpose of radiation, it is necessary to place within each frame a spacing member 7, such as shown in Figs. 7, 8 and 9. This member is' shaped to occupy the space within each water channel frame, as indicated in Fig. 1. Once a spacer has been placed in position within each frame it is possible to assemble the frames and to clamp them tightly together in a soldering frame as well known to those versed in the art), whereupon the assembled core is dipped into the soldering medium.

The shape of the water channel will now be described, and reference is again invited to Fig. t, in which this shape is clearly outlined. It is seen that each frame side 1 and 2 is bent to form a succession of semi-hexagonal outlines, alternately inverted, and that the apex 1*, bottom 1 and the inclines 1 of each semi-hexagonal outline of a frame side 1 are parallel with the corresponding parts of a frame side 2. As best shown in Figs. 3, 5 and 6, each strip of metal making a frame side 1 or 2 comprises a wide center portion and narrow bands along each edge. Said bands are the portions hereinbefore described, which are brought into intimate contact when the frames are assembled, and

which are tied together in the soldering its bands correspond in shape to the bands of the water channel strips, and when they are placedwithin a water channel frame 1t is noticed thatthe apices of the water channels abut the apices of the spacers, and that as a consequence the bands of the spacers cooperate with the bands-of the water channel strips to form the hexagonal cellular shape which is most conspicuous in this structure.

Now it is noticed, see Fig. 8 that the center portion of the spacer is depressed evenly from both sides, so as to be only about half the thickness of the spacer. The outline of the center portion is substantially as the outline of the bands, but it is noticed that'the" shape extends from a semi-hexagon of one banddiagonally across to the next following hexagon of the opposite band, thereby creating passages for air, low in front of the core and rising toward the rear. The purpose of these diagonal channels is to divert some of the air passing through the core. If there was no spacer at all, as shown at D, Fig. 1,

most of the air passing through the core would not touch the water channels at all and so be lost, so far as radiation is con cerned. If the spacers were corrugated transversely, they would, to be sure, draw much heat from the water channels, to be .carried away by the air sliding along the spacers, and better radiation would be'obtained. And by diverting a large portion of the air diagonall upward, very increased radiation is obtained because much of the air is thrown with great force against the inclines of the water channels.

The spacers must be placed within the water channel frames with exactness in order that the finished core may present a symmetrical and perfect appearance, and for this purpose sultable locatlng means are provided. In the drawings such means take the shape of dome shaped projections 1 2 7 all substantially of the same shape, although the spacer projections 7 fitting within the channel projections 1,, 2 may be slightly smaller. It is readily seen by those versed inthe art that, these projections serve.

-disposed transversely to maintain the parts in proper alignment until soldered together, and we may, of course employ two rows of aligning projections in place of one where we find it preferable.

It is important to note that there is a fixed relation between the width of the strip, from which the spacer is formed, and the angle of the diagonal'corrugations. Ob-

viously, if there was a variation in the anthat the inclined corrugations may meet the semi-hexagonal corrugations of the bands along the edges.

We claim:

1. In a radiator core, a series of water,

channels,- and a series of intermediate spacers having semi-hexagonal bands abutting similar bands of said channels and made with depressed diagonal corrugations extending from the front bands upwardly, said spacers having locating buttons for reglstration with similar buttons of the water channels, said buttons centrally located in each diagonal corrugation.

2. In a radiator core, a series of vertically corrugated water channels and a series of intermediate spacers having dia onal corrugations, all the parts provided wlth interfittm locating buttons, the angle of inclination 0 said diagonal corrugations being correctly calculated relative to the width of the channels and spacers to locate said buttons in the center of each corru ation. I

n testimony whereof we have hereunto afiixed our signatures.

. CHARLES F. SPERY.

- JOSEPH H. SPERY. 

